37559510

永远替换字符串中的字符，和word中的替换功能相同(Forever the replacement string of characters, and word replacement functionality in the same)

STM32的IAP升级程序，已经是可以用的，是用SD卡升级的程序，简单好用，有需要的朋友可以直接用(The STM32 IAP upgrade process, it is already possible to use, is to use the SD card upgrade program, easy to use, a friend in need can be directly used)

自己用VB和Access编的一个邮件查询系统(Own use VB and Access Code for a mail query system)

excel_automation excel automation的使用()

一个交互式的计算器。 1. 用顺序表来完成任意同维度向量的计算，包括加法、减法、夹角余弦值等。 2. 使用顺序表、链表来完成任意一元多项式的计算，包括加法、减法、乘法、导数(包括任意阶)等。 4. 四则运算表达式求值。 5. 含单变量的表达式求值。 6. 定义并运行简单函数。 7. 保留函数定义历史，并可以运行历史函数。 8. 函数的调用。 9. 操作数的各种字面常量的处理。 10. 支持矩阵的运算。(An interactive calculator. 1. Complete the calculation of any vector of the same dimension with the sequence table, including addition, subtraction, angle cosine value and so on. 2. Use order list and chain list to complete the calculation of any one-variable polynomial, including addition, subtraction, multiplication, derivative (including any order), etc. 4. Four Operational Expressions. 5. Evaluation of expressions with univariates. 6. Define and run simple functions. 7. Retain function definition history and run history function. 8. Call of function. 9. Processing of literal constants of operands. 10. Supporting matrix operations.)

谭浩强C程序设计第四版第9章习题答案,自己做出来的( C Programming Fourth Edition Chapter 9 Exercise answers, do it yourself)

VB编写的超级卸载工具源代码,有需要的就下载吧。(Super uninstall tool written in VB source code, there is a need to download it.)

economic dispatch with multiple constraints

一个简单的计算器程序，实现了加、减、乘、除计算(A simple calculator program to achieve the add, subtract, multiply, divide computing)

说明：  光伏电池仿真，光伏电池模型建立，最大功率跟踪控制，蓄电池充放电控制(Photovoltaic cell simulation, photovoltaic cell model, maximum power tracking control, battery charge and discharge control)